multiferroic; ferroelectric; quantum critical point; electromagnons
Sibille Romain, Lhotel Elsa, Ciomaga Hatnean Monica, Nilsen Gøran J., Ehlers Georg, Cervellino Antonio, Ressouche Eric, Frontzek Matthias, Zaharko Oksana, Pomjakushin Vladimir, Stuhr Uwe, Walker Helen C., Adroja Devashibhai T., Luetkens Hubertus, Baines Chris, Amato Alex, Balakrishnan Geetha, Fennell Tom, Kenzelmann Michel (2017), Coulomb spin liquid in anion-disordered pyrochlore Tb2Hf2O7, in
Nature Communications, 8(1), 892-892.
Mazzone D. G., Raymond S., Gavilano J. L., Steffens P., Schneidewind A., Lapertot G., Kenzelmann M. (2017), Spin Resonance and Magnetic Order in an Unconventional Superconductor, in
Physical Review Letters, 119(18), 187002-187002.
Honda T., White J. S., Harris A. B., Chapon L. C., Fennell A., Roessli B., Zaharko O., Murakami Y., Kenzelmann M., Kimura T. (2017), Coupled multiferroic domain switching in the canted conical spin spiral system Mn2GeO4, in
Nature Communications, 8, 15457-15457.
Gauthier N., Fennell A., Prévost B., Désilets-Benoit A., Dabkowska H. A., Zaharko O., Frontzek M., Sibille R., Bianchi A. D., Kenzelmann M. (2017), Field dependence of the magnetic correlations of the frustrated magnet SrDy2O4, in
Physical Review B, 95(18), 184436-184436.
Mazzone Daniel Gabriel, Raymond Stéphane, Gavilano Jorge Luis, Ressouche Eric, Niedermayer Christof, Birk Jonas Okkels, Ouladdiaf Bachir, Bastien Gaël, Knebel Georg, Aoki Dai, Lapertot Gérard, Kenzelmann Michel (2017), Field-induced magnetic instability within a superconducting condensate, in
Science Advances, 3(5), e1602055-e1602055.
Gauthier N., Fennell A., Prévost B., Uldry A.-C., Delley B., Sibille R., Désilets-Benoit A., Dabkowska H. A., Nilsen G. J., Regnault L.-P., White J. S., Niedermayer C., Pomjakushin V., Bianchi A. D., Kenzelmann M. (2017), Absence of long-range order in the frustrated magnet SrDy2O4 due to trapped defects from a dimensionality crossover, in
Physical Review B, 95(13), 134430-134430.
Shimamoto Kenta, Mukherjee Saumya, Manz Sebastian, White Jonathan S., Trassin Morgan, Kenzelmann Michel, Chapon Laurent, Lippert Thomas, Fiebig Manfred, Schneider Christof W., Niedermayer Christof (2017), Tuning the multiferroic mechanisms of TbMnO3 by epitaxial strain, in
Scientific Reports, 7, 44753-44753.
Kenzelmann M (2017), Exotic magnetic states in Pauli-limited superconductors, in
Reports on Progress in Physics, 80(3), 034501-034501.
Hatnean Monica Ciomaga, Sibille Romain, Lees Martin R, Kenzelmann Michel, Ban Voraksmy, Pomjakushin Vladimir, Balakrishnan Geetha (2017), Single crystal growth, structure and magnetic properties of Pr 2 Hf 2 O 7 pyrochlore, in
Journal of Physics: Condensed Matter, 29(7), 075902-075902.
Sibille Romain, Lhotel Elsa, Hatnean Monica Ciomaga, Balakrishnan Geetha, Fåk Björn, Gauthier Nicolas, Fennell Tom, Kenzelmann Michel (2016), Candidate quantum spin ice in the pyrochlore Pr2Hf2O7, in
Physical Review B, 94(2), 024436-024436.
R. Sibille, E. Lhotel, V. Pomjakushina, C. Baines, T. Fennell, M. Kenzelmann (2015), Candidate Quantum Spin Liquid in the Ce+ Pyrochlore Stannate Ce2Sn2O7, in
Physical Review Letters, 115, 097202.
D.G. Mazzone, S. Gerber, J.L. Gavilano, R. Sibille, M. Medarde, B. Delley, M. Ramakrishnan, M. Neugebauer, L.P. Regnault, D. Chernyshov, A. Piovano, T.M. Fernandez-Diaz, L. Keller, A. Cervellino, E. Pomjakushina, K. Conder, M. Kenzelmann (2015), Crystal structure and phonon softening in Ca3Ir4Sn13, in
Physical Review B, 92, 024101.
Mazzone Daniel, Gavilano Jorge, Sibille Romain, Ramakrishnan Mahesh, Dewhurst Charles, Kenzelmann Michel (2015), Distinct vortex-glass phases in Yb3Rh4Sn13 at high and low magnetic fields, in
Journal of Physics: Condensed Matter, 27, 245701.
Mazzone Daniel, Gavilano Jorge L., Sibille Romain, Ramakrishnan Mahesh, Kenzelmann Michel (2014), Small-angle neutron scattering study of the mixed state of Yb3Rh4Sn13, in
Physical Review B, 90(2), 020507.
We propose to work on a range of fundamental questions in the field of magneto-electric multiferroics. Firstly, we would like to explore the electric field/temperature phase diagram of a thin film multiferroic with the goal to induce a magneto-electric quantum critical point. Secondly, we propose to investigate the nature of the excitations in magnetically-induced ferroelectrics, which can be of hybrid magneto-electric nature. This may help to understand whether such excitations can be used in the field of spintronics as wave-like excitations of a magnetic that carry and process information (magnonics), similarly as light waves in photonics. Thirdly, we propose to study multi-order quantum critical behaviour in organo-metallics, which present the simplest model materials to study multi-order quantum criticality. Finally, we propose to study a rare example of ferroelectric ferromagnetic material with the goal to identify the interactions give rise to such behavior.